Question

Find the measure of a 3. ts 43 90° << 43 = [?]

Answer 1

THEOREM:

Same Side Interior Angles Theorem:– If two parallel lines are cut by a transversal, then the same side interior angles are supplementary.

ANSWER:

By same side interior angles theorem,

∠3 + 90° = 180°

∠3 = 180° - 90°

∠3 = 90°.

Answer 2

The correct answer is 90